Which boat to convert a Revell 1:180 Lionfish to?

so, for xmas i received one of the Revell 1:180 Lionfish and have since been stewing over what road to take to do a static conversion using either IBS or Nautilus bits...

the options i'm weighing are:

a) USS Carp (SS-338 ) c1948 on her arctic cruise for ASL and Dr. Lyon... I'd use the Nautilus Icefish conversion kit, their Icefish deck, and their railings photoetching pack for this,

b) USS Carp c1959 (ie after her Fleet Snorkel conversion... there's just something weirdly appealing about a boat with a mascot ==> http://www.olgoat.com/substuff/mik70.htm ) again, I'd go with Nautilus here and use their EB Step-Sail kit, as well as their Carp deck,

or c) USS Pomodon (SS-486) c1951 (ie after her GUPPY II conversion) and would for this use the IBS GUPPY II conversion kit.

'trouble is, I can't make up my darned head over which way to go. I realize of course that it's really all a matter of personal predilection, but'd nonetheless be curious to hear whatever you good folks would care to weigh-in with.